We use a
S10E from E3DC. I don't know if they are available in the US. It's an all-in-one solution, where you can add one or two batteries. It's bit oversized for our needs (the S10 mini would probably have been enough, but it had limitations on the backup functionality).
We use modules from HeckertSolar with 320 Watt peak per panel (as we didn't have much space on the roof, we took one the most efficient panels we could find to get the most out of the space. And we preferred to buy "made in Germany" instead of shipping the panels around the world)